问题
选择题
— Is there a poster on the wall?
— No, . [ ]
A. it isn't
B. there isn't
C. there aren't
D. they aren't
答案
答案：B
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— Is there a poster on the wall?
— No, . [ ]
A. it isn't
B. there isn't
C. there aren't
D. they aren't
答案：B